SSD detactor algorithm and related classes (E. Fragiacomo)

[u/mrichter/AliRoot.git] / ITS / AliITSChannelDaSSD.cxx

diff --git a/ITS/AliITSChannelDaSSD.cxx b/ITS/AliITSChannelDaSSD.cxx
new file mode 100644 (file)
index 0000000..33c8278
--- /dev/null
+++ b/ITS/AliITSChannelDaSSD.cxx
@@ -0,0 +1,118 @@
+
+#include "AliITSChannelDaSSD.h"
+
+ClassImp(AliITSChannelDaSSD)
+
+using namespace std;
+
+const Float_t  AliITSChannelDaSSD::fgkUndefinedValue  = 32639.0f;  // = 0x7F7F
+
+AliITSChannelDaSSD::AliITSChannelDaSSD() :
+  fStripId(0),
+  fEventsNumber(0),
+  fSignal(NULL),
+  fPedestal(fgkUndefinedValue),
+  fNoise(fgkUndefinedValue),
+  fZsThresholdFactor(0.0f)
+{
+}
+
+
+AliITSChannelDaSSD::AliITSChannelDaSSD(const UShort_t stripID) :
+  fStripId(stripID),
+  fEventsNumber(0),
+  fSignal(NULL),
+  fPedestal(fgkUndefinedValue),
+  fNoise(fgkUndefinedValue),
+  fZsThresholdFactor(0.0f)
+{
+}
+
+
+AliITSChannelDaSSD::AliITSChannelDaSSD(const UShort_t stripID, const Long_t eventsnumber) :
+  fStripId(stripID),
+  fEventsNumber(0),
+  fSignal(NULL),
+  fPedestal(fgkUndefinedValue),
+  fNoise(fgkUndefinedValue),
+  fZsThresholdFactor(0.0f)
+{
+  if (stripID > fgkMaxStripId)
+    Warning("AliITSChannelDaSSD", "Wrong StripID: %i", stripID);
+  try
+  {
+     fSignal = new Short_t [eventsnumber];
+     fEventsNumber = eventsnumber;
+     memset(fSignal, fgkDefaultSignal, (eventsnumber * sizeof(Short_t)));
+  }
+  catch (bad_alloc&) 
+  {
+     cout << "Error allocating memory for " << (long) eventsnumber << " Short_t objects in AliITSChannelDaSSD constructor!" << endl;
+     fSignal = NULL;
+     fEventsNumber = 0;
+  }  
+}
+
+
+
+AliITSChannelDaSSD::AliITSChannelDaSSD(const AliITSChannelDaSSD& strip) :
+  TObject(strip),
+  fStripId(strip.fStripId),
+  fEventsNumber(strip.fEventsNumber),
+  fSignal(strip.fSignal),
+  fPedestal(strip.fPedestal),
+  fNoise(strip.fNoise),
+  fZsThresholdFactor(strip.fZsThresholdFactor)
+{
+  // copy constructor
+
+  Fatal("AliITSChannelDaSSD", "copy constructor not implemented");
+}
+
+AliITSChannelDaSSD& AliITSChannelDaSSD::operator = (const AliITSChannelDaSSD& strip)
+{
+// assignment operator
+
+  Fatal("operator =", "assignment operator not implemented");
+  return *this;
+}
+
+
+AliITSChannelDaSSD::~AliITSChannelDaSSD()
+{
+  if (fSignal) 
+  {
+     delete [] fSignal;
+  }
+}
+
+
+Bool_t AliITSChannelDaSSD::SetEvenetsNumber(const Long_t eventsnumber)
+{
+  try
+  {
+     fSignal = new Short_t[eventsnumber];
+     fEventsNumber = eventsnumber;
+     memset(fSignal, fgkDefaultSignal, (eventsnumber * sizeof(Short_t)));
+     return kTRUE;
+  }
+  catch (bad_alloc&) 
+  {
+     cout << "Error allocating memory for " << (long) eventsnumber << " Short_t objects!" << endl;
+     fSignal = NULL;
+     fEventsNumber = 0;
+     return kFALSE;
+  }  
+}
+
+
+
+Bool_t AliITSChannelDaSSD::SetSignal(const Long_t eventnumber, const Short_t signal)
+{
+  if (eventnumber < fEventsNumber && fSignal)
+  {
+     fSignal[eventnumber] = signal;
+     return kTRUE;
+  }
+  return kFALSE;
+}